I made a big mistake, How is everyone? I thought I'd be clever and hide my user name from popping up in my neighborhood under my name when people search for online devices using wifi or other airdrop stuff. Here is what I've done step by step, please help me ! HAHAHAH 1- Unlocked the bolt 2- right clicked on my Admin User Name and it had "Advanced Settings" 3- changed the names Then unlocked the bolt and restarted the MBP (15" touch bar with 3.1GHZ 16GB ram 4GB vram 2TB SSD version). I can sign in and everything, but when I hit the bolt in USERS settings the pop up window is blank so I have to enter the name, I entered the name from which I changed it to with the correct password but it wont let me unlock the bolt? It also wont let me enter my original user admin name which is basically my first and last name. What did I do, can I resolve this? I can't unlock the system preferences to USERS.